Anti-reflux suction bottle

Abstract

A connecting port is arranged on a bottle body, an anti-reflux device comprises a shell and a valve body, a liquid inlet is arranged at the top of the shell and can be connected with a suction tube, a liquid outlet which can be connected with the connecting port is arranged at the bottom of the shell, and the radial size of the liquid outlet is larger than that of the liquid inlet. A liquid inlet cavity is formed in the shell, the radial size of the liquid inlet cavity is larger than or equal to that of the liquid outlet, the valve body comprises a strip-shaped installation part and a conical part, the strip-shaped installation part is fixedly installed on the liquid outlet, the conical part is movably connected into the strip-shaped installation part, and the conical part moves up and down in the liquid inlet cavity along with changes of the liquid level of liquid in the liquid inlet cavity. According to the anti-backflow suction bottle, when the bottle body is filled with liquid (liquid dung) or the bottle body is inverted, and the liquid enters the liquid inlet cavity, the conical part can move upwards under the action of buoyancy to automatically close the liquid inlet, and the liquid is prevented from flowing back into the suction pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to an anti-backflow suction bottle. Background Art

[0002] Digestive endoscopes are a group of devices that obtain ultrasound or X-ray images of the digestive tract and digestive organs directly through the digestive tract or through devices with ultrasound and X-rays to diagnose and treat digestive system diseases. According to the properties of the endoscopes used for examination, they can be divided into esophagoscopes, gastroscopes, duodenoscopes, colonoscopes, small intestine endoscopes, endoscopic ultrasound, capsule endoscopes, choledochoscopes (including mother-and-child endoscopes), pancreatoscopes and laparoscopes, as well as laser confocal endoscopes, etc. According to the examination site and function, they can be divided into upper gastrointestinal endoscopes, lower gastrointestinal endoscopes, endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound.

[0003] Colonoscopy can be used to detect intestinal lesions and inflammation. During colonoscopy, intestinal preparation is required. Intestinal preparation is to expel all the feces in the intestine. Good intestinal preparation is the key to the success of colonoscopy. If the intestinal preparation is not sufficient, there will be more fecal residue or fecal water in the intestine, which will affect the observation of the field of vision and lead to missed diagnosis, misdiagnosis, etc. For patients with fecal residue or fecal water in the intestine, water suction operation is required, which can not only clean the intestine, but also provide a clearer field of vision for subsequent examinations.

[0004] During the water suction operation, it is necessary to select an appropriate water suction device according to the actual situation. The water suction device usually includes a water suction pipe, a suction bottle, etc. The intestine is cleaned by spraying water and absorbing water into the intestine through the water suction pipe and the suction bottle. The water suction ball in the existing technology is not provided with an anti-backflow structure. Therefore, when the liquid (feces) inside the suction bottle is full or the suction bottle is inverted, the liquid (feces) and dirt in the suction bottle will flow back into the water suction pipe. Utility Model Content

[0005] The utility model aims to provide an anti-backflow suction bottle to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A backflow prevention suction bottle comprises a bottle body, a connecting port is provided on the bottle body, and a backflow prevention device, the backflow prevention device comprises a shell and a valve body, a liquid inlet is provided on the top of the shell, the liquid inlet can be connected to a suction tube, a liquid outlet that can be connected to the connecting port is provided at the bottom of the shell, the radial dimension of the liquid outlet is larger than the radial dimension of the liquid inlet, a liquid inlet cavity is provided inside the shell, the radial dimension of the liquid inlet cavity is larger than or equal to the radial dimension of the liquid outlet, the valve body comprises a strip mounting member and a conical member, the strip mounting member is fixedly mounted on the liquid outlet, the conical member is movably connected in the strip mounting member, and the conical member moves up and down in the liquid inlet cavity as the liquid level in the liquid in the liquid inlet cavity changes.

[0008] In the above-mentioned anti-backflow suction bottle, the liquid inlet is located at one end of the liquid inlet cavity and is provided with an annular groove. When the conical member moves to the highest position in the liquid inlet cavity, the conical member abuts against the annular groove.

[0009] In the above-mentioned anti-backflow suction bottle, the size of the conical part is larger than the size of the liquid inlet, and two arc-shaped guide grooves are symmetrically arranged at the lower part of the conical surface of the conical part, and the arc-shaped guide grooves are staggered with the strip-shaped mounting part.

[0010] In the above-mentioned anti-backflow suction bottle, a moving column is arranged at the bottom of the conical part, a fixing rod is arranged on the strip-shaped mounting part, a movable channel is arranged on the fixing rod, and the lower end of the moving column is movable and restricted in the movable channel.

[0011] In the above-mentioned anti-backflow suction bottle, the moving column includes a first section and a second section connected to each other, and the radial dimension of the second section is smaller than the radial dimension of the first section.

[0012] The above-mentioned anti-backflow suction bottle has a circular restriction plate at the end of the second section, and an annular restriction piece is provided on the movable channel. The annular restriction piece forms a through hole for the second section to pass through. The radial size of the circular restriction plate is larger than the size of the through hole, and the circular restriction plate is movably connected in the movable channel.

[0013] In the above-mentioned anti-backflow suction bottle, a first magnetic attraction member is arranged at the bottom of the movable channel, and a second magnetic attraction member is arranged on the circular limiting plate. The first magnetic attraction member and the second magnetic attraction member have different magnetic properties.

[0014] In the above-mentioned anti-backflow suction bottle, the first magnetic attraction component includes a first magnetic block arranged at the bottom of the active channel, and the second magnetic attraction component includes a second magnetic block arranged at the bottom of the circular limiting plate. The areas of the first magnetic block and the second magnetic block are the same, and the area of ​​the first magnetic block accounts for one-sixth to one-quarter of the area of ​​the circular limiting plate.

[0015] In the above technical scheme, the anti-backflow suction bottle provided by the embodiment of the utility model includes a bottle body and a backflow preventer, the backflow preventer includes a shell and a valve body, the top of the shell is provided with a liquid inlet, the liquid inlet is connected to the suction tube, the bottom of the shell is provided with a liquid outlet that can be connected to the bottle body, the valve body includes a strip mounting piece and a conical piece, the strip mounting piece is fixedly mounted on the liquid outlet, and the conical piece is movably connected in the strip mounting piece, so that during the water absorption operation, when the liquid (fecal water) inside the bottle body is full or the bottle body is inverted and the liquid enters the liquid inlet cavity, the conical piece will move upward under the action of buoyancy to automatically close the liquid inlet to prevent the liquid from flowing back into the suction tube, and when there is no liquid in the liquid inlet cavity, the conical piece automatically moves downward to the initial state, the liquid inlet is opened, and the water absorption operation can continue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the structure of an anti-backflow suction bottle provided in an embodiment of the utility model;

[0018] Figure 2 A cross-sectional view of an anti-backflow suction bottle provided in an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the installation of a backflow preventer provided in an embodiment of the utility model;

[0020] Figure 4 One of the structural schematic diagrams of the tapered member provided in the embodiment of the utility model;

[0021] Figure 5 The second structural schematic diagram of the conical member provided in the embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Bottle body; 10. Connecting port; 2. Backflow preventer; 20. Shell; 21. Liquid inlet; 22. Liquid outlet; 23. Liquid inlet chamber; 230. Upper chamber; 231. Lower chamber; 3. Valve body; 30. Strip mounting member; 31. Conical member; 310. Arc guide groove; 32. Moving column; 320. First section; 321. Second section; 33. Circular limiting plate; 330. First magnetic member; 34. Fixed rod; 340. Movable channel; 341. Second magnetic member; 35. Annular limiting member; 350. Through hole. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1-5 As shown, an embodiment of the utility model provides an anti-backflow suction bottle, including a bottle body 1, on which a connecting port 10 is provided, a backflow preventer 2 including a shell 20 and a valve body 3, a liquid inlet 21 is provided on the top of the shell 20, the liquid inlet 21 is connected to the suction tube, a liquid outlet 22 which can be connected to the connecting port 10 is provided at the bottom of the shell 20, a radial dimension of the liquid outlet 22 is larger than a radial dimension of the liquid inlet 21, a liquid inlet cavity 23 is provided inside the shell 20, a radial dimension of the liquid inlet cavity 23 is larger than or equal to a radial dimension of the liquid outlet 22, the valve body 3 includes a strip mounting member 30 and a conical member 31, the strip mounting member 30 is fixedly mounted on the liquid outlet 22, the conical member 31 is movably connected in the strip mounting member 30, and the conical member 31 reciprocates up and down in the liquid inlet cavity 23 as the liquid level in the liquid inlet cavity 23 changes.

[0026] Specifically, the suction bottle includes a bottle body 1 and a connection port 10 provided on the bottle body 1. The connection port 10 is used to connect with the backflow preventer 2. Other structures or interfaces may also be provided on the bottle body 1. This is a prior art and will not be described in detail. The difference between the suction bottle in this embodiment and the suction bottle in the prior art is that the connection port 10 is larger in size, so that it is convenient to connect with the backflow preventer 2. The backflow preventer 2 includes a shell 20 and a valve body 3 provided inside the shell 20. A cylindrical liquid inlet cavity 23 is formed inside the shell 20. A liquid inlet 21 is provided at the top of the shell 20. A liquid outlet 22 is provided at the bottom of the shell 20. The liquid inlet 21 and the liquid outlet 22 are both connected to the liquid inlet cavity 23. When the shell 20 is installed on the connection port 10, the liquid inlet 21, the liquid inlet cavity 23, the liquid outlet 22 and the connection port 10 are coaxial.

[0027] In this embodiment, the valve body 3 includes a strip mounting member 30 of the same size as the diameter of the liquid outlet 22, and a conical member 31 is movably connected to the strip mounting member 30. The density of the conical member 31 is less than the density of water, and the conical member 31 can move up and down in the liquid inlet chamber 23. The size relationship between the liquid inlet 21, the liquid outlet 22 and the liquid inlet chamber 23 is as follows: the size of the liquid inlet 21 is consistent with the size of the suction tube so that it can be connected to the suction tube, the radial size of the liquid outlet 22 is greater than the radial size of the liquid inlet 21, and the radial size of the liquid inlet chamber 23 is greater than or equal to the radial size of the liquid outlet 22. In this way, the liquid inlet chamber 23 between the conical member 31 and the liquid inlet 21 forms an upper chamber 230, and the liquid inlet chamber 23 between the conical member 31 and the liquid outlet 22 forms a lower chamber 231. In this way, when the bottle body 1 is in use, When the backflow preventer 2 and the suction tube are performing water suction operation on the intestine, the fecal water enters the upper chamber 230 from the suction tube and the liquid inlet 21, and is then output to the bottle body 1 from the lower chamber 231 and the liquid outlet 22. When the liquid inside the bottle body 1 is full or the bottle body 1 is inverted, the liquid (fecal water) enters the liquid inlet chamber 23, and the conical member 31 moves upward under the action of buoyancy, thereby making the upper chamber 230 smaller and the lower chamber 231 larger, until the conical member 31 is blocked on the liquid inlet 21, thereby closing the liquid inlet 21. When there is no liquid in the liquid inlet chamber 23, the conical member 31 moves downward along the liquid inlet chamber 23 under the action of gravity, thereby making the upper chamber 230 larger and the lower chamber 231 smaller, until they return to the initial state (the upper chamber 230 and the lower chamber 231 are the same size).

[0028] The anti-backflow suction bottle provided by the embodiment of the utility model comprises a bottle body 1 and a backflow preventer 2, the backflow preventer 2 comprises a shell body 20 and a valve body 3, a liquid inlet 21 is arranged on the top of the shell body 20, the liquid inlet 21 is connected to the suction tube, a liquid outlet 22 which can be connected to the bottle body 1 is arranged on the bottom of the shell body 20, the valve body 3 comprises a strip mounting member 30 and a conical member 31, the strip mounting member 30 is fixedly mounted on the liquid outlet 22, the conical member 31 is movably connected in the strip mounting member 30, so that during the water absorption operation, when the liquid (fecal water) inside the bottle body 1 is full or the bottle body 1 is inverted and the liquid enters the liquid inlet chamber 23, the conical member 31 will move upward under the action of buoyancy and automatically close the liquid inlet 21 to prevent the liquid from flowing back into the suction tube, and when there is no liquid in the liquid inlet chamber 23, the conical member 31 will automatically move downward to the initial state, the liquid inlet 21 is opened, and the water absorption operation can continue.

[0029] In the present embodiment, preferably, an annular groove is provided at one end of the liquid inlet 21 located in the liquid inlet chamber 23, and the inner concave surface formed by the annular groove is consistent with the curvature of the conical surface on the conical member 31. When the conical member 31 moves to the highest position in the liquid inlet chamber 23, the conical member 31 abuts against the inner concave surface, thereby increasing the contact area between the conical member 31 and the liquid inlet 21 in the sealed state, thereby improving the sealing effect of the liquid inlet 21.

[0030] In this embodiment, preferably, the size of the conical member 31 is larger than the size of the liquid inlet 21, and two arc-shaped guide grooves 310 are symmetrically arranged at the lower part of the conical surface of the conical member 31. The arc-shaped guide grooves 310 are staggered with the strip mounting member 30, and a guide slope is arranged on the strip mounting member 30. By setting the guide slope, feces are prevented from remaining on the strip mounting member 30. When the strip mounting member 30 is installed on the liquid outlet 22, the strip mounting member 30 separates the liquid outlet 22 into two semicircular liquid outlets 22, and separates the liquid outlets 22. The size of the liquid port 22 is greater than or equal to the size of the liquid inlet 21, and the two arc-shaped guide grooves 310 are arranged corresponding to the two liquid outlets 22. The arrangement of the arc-shaped guide grooves 310 has two effects: first, the radial dimension of the upper chamber 230 located at the arc-shaped guide grooves 310 is the largest, and the radial dimension of the upper chamber 230 here is greater than or equal to the size of the liquid inlet 21, so that the debris in the feces and water can be prevented from being retained in the upper chamber 230; second, the feces and water can be drained to the liquid outlet 22 through the arc-shaped guide grooves 310.

[0031] In this embodiment, preferably, a motion column 32 is provided at the bottom of the conical member 31, a fixing rod 34 is provided on the strip mounting member 30, a movable channel 340 is provided on the fixing rod 34, the lower end of the motion column 32 is movably restricted in the movable channel 340, the motion column 32 includes a first section 320 and a second section 321 connected to each other, the radial dimension of the second section 321 is smaller than the radial dimension of the first section 320, a circular limiting piece 33 is provided at the end of the second section 321, an annular limiting piece 35 is provided on the movable channel 340, the annular limiting piece 35 forms a through hole 350 for the second section 321 to pass through, and the radial dimension of the circular limiting piece 33 is larger than the through hole 35 0 size; during installation, the circular limiting piece 33 is located in the active channel 340, and the second section 321 is located in the through hole 350. When the conical member 31 moves upward, the second section 321 moves up and down along the through hole 350, and the circular limiting piece 33 moves up and down along the active channel 340 until the conical member 31 contacts the inner concave surface on the liquid inlet 21. When there is no liquid (fecal water) in the liquid inlet cavity 23, the conical member 31 is in the initial state. At this time, the end surface where the first section 320 and the second section 321 are connected contacts the annular limiting member 35, thereby realizing the sealing of the through hole 350 and preventing debris in the fecal water from entering the through hole 350 and the active channel 340.

[0032] In this embodiment, preferably, a first magnetic component 330 is provided at the bottom of the active channel 340, and a second magnetic component 341 is provided on the circular limiting plate 33, and the magnetic properties of the first magnetic component 330 and the second magnetic component 341 are different; thus, in the initial state, the first magnetic component 330 and the second magnetic component 341 attract each other to achieve temporary fixation of the conical component 31, but the suction force between the first magnetic component 330 and the second magnetic component 341 is smaller than the buoyancy of the conical component 31, so that when there is liquid in the liquid inlet chamber 23, the conical component 31 can move upward to separate the first magnetic component 330 and the second magnetic component 341.

[0033] In the present embodiment, preferably, the first magnetic member 330 includes a first magnetic block arranged at the bottom of the active channel 340, and the second magnetic member 341 includes a second magnetic block arranged at the bottom of the circular limiting piece 33, and the areas of the first magnetic block and the second magnetic block are the same, and the area of ​​the first magnetic block occupies between one sixth and one quarter of the area of ​​the circular limiting piece 33; the first magnetic block and the second magnetic block are both fan-shaped, and the radial dimension of the second section 321 is smaller than the dimension of the through hole 350, and the radial dimension of the circular limiting piece 33 is slightly smaller than the dimension of the active channel 340, so that when the circular limiting piece 33 moves up and down in the active channel 340, the circular limiting piece 33 can rotate in the active channel 340, and by setting the fan-shaped first magnetic block and the second magnetic block, when the circular limiting piece 33 moves along the active channel 340 When the cone 31 moves downward and the first magnetic block and the second magnetic block are not facing each other, the first magnetic block will generate a suction force on the second magnetic block, and the suction force can drive the circular limiting plate 33 to move downward along the movable channel 340 while rotating until the first magnetic block and the second magnetic block are facing each other and attracted together. In this way, when in use, when the cone 31 moves upward under the action of buoyancy, the cone 31 may rotate and deviate (not every time it deviates), so when the cone 31 moves downward, it may rotate (not every time the cone 31 moves downward), but the cone 31 may rotate. If the cone 31 rotates, the rotation of the cone 31 can clean up the debris in the liquid inlet chamber 23, thereby reducing the debris in the fecal water remaining in the liquid inlet chamber 23.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-backflow suction bottle, comprising a bottle body, wherein the bottle body is provided with a connection port, characterized in that: It also includes a backflow preventer, which includes a shell and a valve body, a liquid inlet is provided on the top of the shell, and the liquid inlet can be connected to the suction tube, and a liquid outlet that can be connected to the connecting port is provided at the bottom of the shell, and the radial dimension of the liquid outlet is greater than the radial dimension of the liquid inlet, and a liquid inlet cavity is provided inside the shell, and the radial dimension of the liquid inlet cavity is greater than or equal to the radial dimension of the liquid outlet, and the valve body includes a strip mounting member and a conical member, the strip mounting member is fixedly mounted on the liquid outlet, and the conical member is movably connected in the strip mounting member, and the conical member moves up and down in the liquid inlet cavity as the liquid level in the liquid in the liquid inlet cavity changes.

2. The anti-backflow suction bottle according to claim 1, characterized in that: The liquid inlet is located at one end of the liquid inlet cavity and is provided with an annular groove. When the conical member moves to the highest position in the liquid inlet cavity, the conical member abuts against the annular groove.

3. The anti-backflow suction bottle according to claim 1, characterized in that: The size of the conical member is larger than that of the liquid inlet. Two arc-shaped guide grooves are symmetrically arranged at the lower part of the conical surface of the conical member. The arc-shaped guide grooves are staggered with the strip-shaped mounting member.

4. The anti-backflow suction bottle according to claim 1, characterized in that: A moving column is arranged at the bottom of the conical part, a fixing rod is arranged on the strip-shaped mounting part, a movable channel is arranged on the fixing rod, and the lower end of the moving column is movable and restricted in the movable channel.

5. The anti-backflow suction bottle according to claim 4, characterized in that: The moving column includes a first section and a second section connected to each other, wherein a radial dimension of the second section is smaller than a radial dimension of the first section.

6. The anti-backflow suction bottle according to claim 5, characterized in that: A circular limiting plate is arranged at the end of the second section, and an annular limiting member is arranged on the movable channel. The annular limiting member forms a through hole for the second section to pass through. The radial dimension of the circular limiting plate is larger than the dimension of the through hole, and the circular limiting plate is movably connected in the movable channel.

7. The anti-backflow suction bottle according to claim 6, characterized in that: A first magnetic attraction component is disposed at the bottom of the movable channel, and a second magnetic attraction component is disposed on the circular limiting plate. The first magnetic attraction component and the second magnetic attraction component have different magnetic properties.

8. The anti-backflow suction bottle according to claim 7, characterized in that: The first magnetic attraction member includes a first magnetic block arranged at the bottom of the active channel, and the second magnetic attraction member includes a second magnetic block arranged at the bottom of the circular limiting plate. The first magnetic block and the second magnetic block have the same area, and the area of ​​the first magnetic block accounts for one-sixth to one-quarter of the area of ​​the circular limiting plate.

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